Finite Group Databasebeta

#72243157

order4374
automorphism?
homologyAbelianization (H1) = C2×C32 · Schur multiplier (H2) = C3

Aliases

No aliases for this group.

Splittings

Fitting, Sylow#14552588 ⋊ C2

Subgroups

subgroupG/H
centerC3C3×#92314
commutator, cosocleC3×C92C2×C32
Frattini, socleC33C32×C3⋊D3
Fitting#14552588C2
prime radicalC3×#92314C3
hypercenterC9#92314
hypocenterC92C2×3−1+2
LCSG ▷ C3×C92 ▷ C92
UCSC1 ◁ C3 ◁ C9

768 conjugacy classes of subgroups; only the 100 normal subgroups are shown.

normal subgroups only

This group has 768 conjugacy classes of subgroups — too many to draw. Only its 100 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 486

Polycyclic presentation:

2,3^7|b^3=d,c^3=d,e^3=g,f^3=h,c^b=cd,e^a=e^2g^2,e^c=eg,f^a=f^2h^2,f^c=fh,g^a=g^2,h^a=h^2

Conjugacy classes & character table

174 conjugacy classes — view the full character table.

Relationships

maximal subgroup of3−1+2×#92314, #72243296, #72243318, …
maximal normal subgroup of3−1+2×#92314, #72243296, #72243318, …

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from its polycyclic presentation:

gap> F := FreeGroup(IsSyllableWordsFamily, "a", "b", "c", "d", "e", "f", "g", "h");;
gap> coll := SingleCollector(F, [2, 3, 3, 3, 3, 3, 3, 3]);;
gap> SetPower(coll, 2, F.4);;
gap> SetPower(coll, 3, F.4);;
gap> SetPower(coll, 5, F.7);;
gap> SetPower(coll, 6, F.8);;
gap> SetConjugate(coll, 3, 2, F.3*F.4);;
gap> SetConjugate(coll, 5, 1, F.5^2*F.7^2);;
gap> SetConjugate(coll, 5, 3, F.5*F.7);;
gap> SetConjugate(coll, 6, 1, F.6^2*F.8^2);;
gap> SetConjugate(coll, 6, 3, F.6*F.8);;
gap> SetConjugate(coll, 7, 1, F.7^2);;
gap> SetConjugate(coll, 8, 1, F.8^2);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);